Christopher Gibson sells 160,000 Class A shares (RXRX) via Form 144

Rhea-AI Filing Summary

Christopher C. Gibson filed notices of proposed sales of Class A shares under Form 144. The excerpt lists four sale entries: 40,000 shares on 02/19/2026 for $138,400.00, 40,000 shares on 03/23/2026 for $130,000.00, 40,000 shares on 04/07/2026 for $124,000.00, and 40,000 shares on 04/22/2026 for $144,400.00. The filing identifies the broker as Fidelity Brokerage Services LLC and lists the trading venue as NASDAQ.

Key Figures

02/19/2026 sale: 40,000 shares 03/23/2026 sale: 40,000 shares 04/07/2026 sale: 40,000 shares +3 more

6 metrics

02/19/2026 sale 40,000 shares sale reported for $138,400.00

03/23/2026 sale 40,000 shares sale reported for $130,000.00

04/07/2026 sale 40,000 shares sale reported for $124,000.00

04/22/2026 sale 40,000 shares sale reported for $144,400.00

Aggregate listed shares 160,000 shares total of four listed transactions

Aggregate reported proceeds $536,800.00 sum of the four reported dollar amounts in the excerpt

Key Terms

Form 144, Founders Shares, Class A

3 terms

Form 144 regulatory

"filed notices of proposed sales of Class A shares under Form 144"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Founders Shares market

"Founders Shares | Issuer | 09/01/2016 | Compensation"

Founders shares are a special block of a company’s stock originally given to the people who started the business; they often carry extra voting power or favorable terms compared with regular shares. For investors, these shares matter because they concentrate control and influence how future funding, ownership dilution, and decision-making will play out—think of founders shares as the steering wheel that can steer a company’s direction even as more passengers (investors) climb aboard.

Class A market

"Class A | Fidelity Brokerage Services LLC ... | 40000"

Class A denotes a specific group of a company’s shares that carry a particular set of rights—most commonly different voting power or dividend priority compared with other share classes. Think of it like different seats on a bus where some seats let you steer and others only ride: knowing whether a share is Class A tells investors how much influence they have over company decisions and how returns might be distributed, which affects control and value.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	40000	134800.00	524677865	05/07/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	09/01/2016	Founders Shares	Issuer			40000	09/01/2016	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	02/19/2026	40000	138400.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	03/23/2026	40000	130000.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	04/07/2026	40000	124000.00
Christopher C. Gibson 41 S Rio Grande Street Salt Lake City UT 84101	Class A	04/22/2026	40000	144400.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What sales does the RXRX Form 144 show for Christopher C. Gibson?

The filing shows four proposed sales of Class A shares by Christopher C. Gibson. The dates and amounts are 02/19/2026 40,000 shares $138,400; 03/23/2026 40,000 shares $130,000; 04/07/2026 40,000 shares $124,000; 04/22/2026 40,000 shares $144,400.

Which broker and market are named in the RXRX excerpt?

The excerpt names Fidelity Brokerage Services LLC as the broker and lists NASDAQ as the trading venue. The broker address shown is 900 Salem Street, Smithfield, RI 02917.

Are the securities described in the RXRX filing restricted or founders' shares?

The excerpt labels the securities as Class A and also references Founders Shares with an original grant date of 09/01/2016, indicating the shares' origin as compensation.

How many shares in total are reported across the sales listed?

The listed entries total 160,000 shares across four transactions of 40,000 shares each, with aggregate reported proceeds of $536,800.00 as shown in the excerpt.